Scrant, don't overthink that one. You've given your answer and that's the end of that one. Please don't expect any response and do nothing further - definitely don't ask if she read it. If a friend invited you to something and you declined, would you check they had read it?
Nearer the time, you could also remind your S of the invite and that he needs to confirm things with his Mum.
You're doing well - just watch out for those overthinking moments!!
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus
